Oyster-float



T. MGOOSKER. y

Oyster Float.

No. 232,740. Patented Sept, 28,1880..

N.FETERS. PHOTQUTHDGRAPNER, WASHxNGl'ON` D C.

UNITED STATES @PATENT OFFICE.

THOMAS MCOOSKEB, OF BALTIMORE, MARYLAND.

OYSTER-FLOAT.

SPECIFICATION forming part of Letters Patent No. 232,740, datedSeptember 28, 1880. Application filed December 1, 1879.

To all whom t may concern Be it known that I, THOMAS MCOOSKER, of thecity of Baltimore and State of Maryland, have invented certainImprovements in Oyster-Floats, of which the following is aspecification5'a11d I do hereby declare that in the same is contained afull, clear, and exact description of my said invention, reference beinghad to the accompanying drawings, and to the letters ot' referencemarked thereon.

This invention relates to certain improvements in oyster-lloats-that isto say, devices for transportingoysters-which admit of the oysters beingimmersed in water when they are to be kept for any considerable lengthottime 5 and the said invention consists in certain improvementshereinafter described, whereby the weight of the oysters, as far as itaffects the manipulation of the platform upon which the oysters rest, ispractically dispensed with.

In the further description ofthe said invention which follows referenceis made to the accompanying drawings, forming a part hereof, and inwhich- Figures I and Il are, respectively, a partly longitudinal sectionand a cross-section of the said invention, and Fig. Ill a plan of thesame.

Similar letters of reference indicate similar parts in all the views.

In the said drawings, A A are pontons, connected at their ends in anysuitable manner.

The said pontons consist, preferably, of hollow water-tight vesselscapable of sustaining a considerable Weight 5 but ordinary logs may beused, if desired.

B is a hollow water-tight platform, upon which the oysters are placed,having upwardly-proiecting sides, which prevent the oysters from fallingover the ends thereofand between the said float and the pontons.

The hollow platform is constructed to have such displacement as willenable it to support a weight about. equal to that of the oysters to beplaced thereon, in. order that in raising and lowering it when loadedpractically no power is required except to overcome the friction of theoperating mechanism.

O O are uprights projecting surface of the platform B, to racks c arefastened.

Suitablepinions b, secured to shafts c, resting in bearings c, attachedto the pontons A, are operated by means of cranks to elevate and depressthe platform, and ratchet-wheels c and pawls 0 are employed to hold theplatform at any height with reference to the vpontons.

I claim as myinvention- In combination with the pontons A, securedtogether at their ends and provided with bearings c, carrying shafts,pinions, ratchet mechanism, and cranks,the hollow platform B, having theuprights C and racks a, substantially as and for the purpose specified.

Vitnesses: THOMAS MCOOSKER.

WM. T. HOWARD, JN0. T. MADDOX.

from thev upper which toothed

